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URL Encoder

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URL Encoder — Encode Text for URLs Online Free

What is URL Encoder?

Encode text for use in URLs. Convert spaces and special characters to percent-encoded format.

URL Encoder converts text into percent-encoded format for safe use in URLs. Spaces become %20, special characters like & and = become %26 and %3D. This is essential when building query strings, passing parameters in URLs, or encoding form data. The tool uses the standard encodeURIComponent function. All encoding happens in your browser.

How to Use URL Encoder

  1. Paste or type your input into the editor on the left panel.
  2. Results update automatically while you type. You can also press Ctrl+Enter to force a refresh.
  3. View the result in the output panel on the right with full syntax highlighting.
  4. Use Copy or Download to export the result.
  5. Drag and drop .json or .txt files directly into the editor.

Example

Input:

Hello World! How are you?

Output:

Hello%20World!%20How%20are%20you%3F

Common Use Cases

  • Build query strings
  • Encode form data
  • Create safe URLs

URL Encoded vs Plain Text

Spaces
%20
Special chars
%XX hex
Raw character
Use
Query params, paths
Display only

Common Errors

  • Double encoding
  • Wrong character set
  • Missing encoding in APIs

Why Use Our URL Encoder?

  • 100% client-side — your data never leaves your browser. No server processing, no data collection.
  • No sign-up required — start using the tool instantly with no registration or installation.
  • Keyboard shortcuts — press Ctrl+Enter to run, ? for shortcuts list, Ctrl+B to toggle sidebar.
  • Persistent state — your input is automatically saved across sessions using local storage.
  • IDE-style interface — Monaco Editor (the engine behind VS Code) with syntax highlighting and error detection.
  • Multi-format conversion — convert between JSON, XML, CSV, and YAML without switching tools.

Frequently Asked Questions

What is URL encoding?

URL encoding converts characters into %XX format so they can be safely used in URLs.

When should I use URL encoding?

When building query strings, passing parameters in URLs, or encoding form data for submission.

What about spaces?

Spaces are encoded as %20 (or + in application/x-www-form-urlencoded).

Is this the same as Base64?

No. URL encoding is percent-encoding; Base64 is a different binary-to-text encoding.

Is my data secure?

Yes. Encoding runs in your browser. No data is sent to any server.

Try URL Encoder Now

Paste your data into the editor above for instant processing. Use Ctrl+Enter anytime to re-run quickly.

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